Audio Output Check; Gnd And Hi-Pot Test; Eye-Q Green Function Inspection; Audio Input Condition - LG 65LF6300 Service Manual

5.7. EYE-Q Green Function Inspection

Step 1) Turn on the TV..
Step 2) Press 'EYE button' on the adjustment remote-
controller.
Step 3) Cover 'Eye Q sensor' on the front of set with your
hands, hold it for 6 seconds.
Step 4) Check "the Sensor Data" on the screen, make certain
that Data is below 10. If Data isn't below 10 in 6
seconds, Eye Q sensor would be bad. You should
change Eye Q sensor.
Step 5) Uncover your hands from Eye Q sensor, hold it for 6
seconds.
Step 6) Check "Back Light(xxx)" on the screen, check data
increase . You should change Eye Q sensor.
5.8. Ship-out mode check (In-stop)
▪ After final inspection, press In-Stop key of the Adj. R/C and
check that the unit goes to Stand-by mode.

6. AUDIO output check

6.1. Audio input condition

(1) RF input: Mono, 1KHz sine wave signal, 100% Modulation
(2) CVBS, Component: 1KHz sine wave signal (0.4Vrms)
6.2. Specification
No Item Min Typ
1 Audio 9.0 10.0
practical 8.5 8.9
max Output,
L/R
(Distor-
tion=10%
max Output)
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
Max Unit Remark
12.0 W (1) Measurement
9.9 Vrms condition
- EQ/AVL/Clear
Voice: Off
(2) Speaker (8Ω
Impedance)
ALL MODEL

7. GND and HI-POT Test

7.1. GND & HI-POT auto-check preparation
(1) Check the POWER CABLE and SIGNAL CABE insertion
condition
7.2. GND & HI-POT auto-check
(1) Pallet moves in the station. (POWER CORD / AV CORD is
tightly inserted)
(2) Connect the AV JACK Tester.
(3) Controller (GWS103-4) on.
(4) GND Test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, execute next process (Hi-pot test).
(Remove A/V CORD from A/V JACK BOX)
(5) HI-POT test (Auto)
- If Test is failed, Buzzer operates.
- If Test is passed, GOOD Lamp on and move to next process
automatically.
8.3. Checkpoint
(1) Test voltage
Products/Model
2Poles
3Poles
Cut off current
Earth Continutiy test
(2) TEST time: 1 second
(3) TEST POINT
- GND Test = POWER CORD GND and SIGNAL CABLE GND.
- Hi-pot Test = POWER CORD GND and LIVE & NEUTRAL.
(4) LEAKAGE CURRENT: At 0.5mArms
- 20 -
TV
Japan 1500V(AC)/
2121v(DC)
Other 3000V(AC)/
4242V(DC)
Japan 800V(AC)/
1131(DC)
Other 1500V(AC)/
2121V(DC)
100mA(AC)/100mA(DC)
LGE Internal Use Only
MNT, Projec-
tor
3000V(AC)/
4242V(DC)
1500V(AC)/
2121(DC)